Leucanthemum plant named ‘Doleuswedaishe’

ABSTRACT

A new and distinct cultivar of  Leucanthemum  plant named ‘Doleuswedaishe’, characterized by its relatively compact, upright and mounded plant habit; freely branching habit; upright flowering stems; early and freely flowering habit; single-type inflorescences with white-colored ray florets and bright yellow-colored disc florets; good inflorescence longevity; and good garden performance.

Botanical designation: Leucanthemum maximum.

Cultivar denomination: ‘DOLEUSWEDAISHE’.

CROSS-RESTATEMENT REGARDING PRIOR DISCLOSURES BY INVENTOR & APPLICANT/ASSIGNEE

An European Community Plant Breeder's Rights application for the instant plant was filed by the Applicant/Assignee, Dümmen Group B.V. of De Lier, The Netherlands on Oct. 28, 2022, application number 2022/2433. Foreign priority is not claimed to this application.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Leucanthemum plant, botanically known as Leucanthemum maximum and hereinafter referred to by the name ‘Doleuswedaishe’.

The new Leucanthemum plant is a product of a planned breeding program conducted by the Inventor in Aalsmeer, The Netherlands. The objective of the breeding program is to create new compact Leucanthemum plants with numerous unique and attractive inflorescences.

The new Leucanthemum plant originated from an open-pollination in June, 2016 of a proprietary selection of Leucanthemum maximum identified as code number LC15-000024-007, not patented, as the female, or seed, parent with an unknown proprietary selection of Leucanthemum maximum as the male, or pollen, parent. The new Leucanthemum plant was discovered and selected by the Inventor as a single flowering plant from within the progeny of the stated open-pollination in a controlled environment in Aalsmeer, The Netherlands in April, 2017.

Asexual reproduction of the new Leucanthemum plant by vegetative terminal cuttings in Aalsmeer, The Netherlands, since May, 2017 has shown that the unique features of this new Leucanthemum plant are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

Plants of the new Leucanthemum have not been observed under all possible combinations of environmental conditions and cultural practices. The phenotype may vary somewhat with variations in environmental conditions such as temperature and light intensity, without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Doleuswedaishe’. These characteristics in combination distinguish ‘Doleuswedaishe’ as a new and distinct Leucanthemum plant:

-   -   1. Relatively compact, upright and mounded plant habit.     -   2. Freely branching habit.     -   3. Upright flowering stems.     -   4. Early and freely flowering habit.     -   5. Single-type inflorescences with white-colored ray florets and         bright yellow-colored disc florets.     -   6. Good inflorescence longevity.     -   7. Good garden performance.

Plants of the new Leucanthemum differ primarily from plants of the female parent selection in plant habit as plants of the new Leucanthemum are much more compact than plants of the female parent selection.

Plants of the new Leucanthemum can be compared to plants of Leucanthemum superbum ‘Real Neat’, disclosed in U.S. Plant Pat. No. 26,185. In side-by-side comparisons, plants of the new Leucanthemum differ from plants of ‘Real Neat’ in the following characteristics:

-   -   1. Plants of the new Leucanthemum are more compact than plants         of ‘Real Neat’.     -   2. Plants of the new Leucanthemum have single-type         inflorescences whereas plants of ‘Real Neat’ have spider-type         inflorescences.     -   3. Plants of the new Leucanthemum have smaller inflorescences         than plants of ‘Real Neat’.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying colored photographs illustrate the overall appearance of the new Leucanthemum plant showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Leucanthemum plant.

The photograph on the first sheet (FIG. 1 ) is a top perspective view of a typical flowering plant of ‘Doleuswedaishe’ grown in a container.

The photograph on the second sheet (FIG. 2 ) comprises close-up views of the upper and lower surfaces of typical inflorescences and leaves of plants of ‘Doleuswedaishe’.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photographs and following observations and measurements describe plants grown in 17-cm containers in Aalsmeer, The Netherlands during the early summer initially in a greenhouse and finished in an outdoor nursery and grown under conditions and cultural practices which approximate those generally used in commercial Leucanthemum plant production. During the production of the plants, day temperatures averaged 21C and night temperatures averaged 15C. Plants were 17 weeks old when the photographs and description were taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, Fifth Edition, except where general terms of ordinary dictionary significance are used. Measurements represent averages for typical flowering plants.

-   Botanical classification: Leucanthemum maximum ‘Doleuswedaishe’. -   Parentage:     -   -   Female, or seed, parent.—Proprietary selection of             Leucanthemum maximum identified as code number             LC15-000024-007, not patented.         -   Male, or pollen, parent.—Unknown proprietary selection of             Leucanthemum maximum, not patented. -   Propagation:     -   -   Type.—Terminal vegetative cuttings.         -   Time to initiate roots, summer.—About twelve days at             temperatures about 26C.         -   Time to initiate roots, winter.—About two weeks at             temperatures about 23C.         -   Time to produce a rooted young plant, summer.—About two             weeks at temperatures about 23C.         -   Time to produce a rooted young plant, winter.—About 16 days             at temperatures about 18C.         -   Root description.—Medium in thickness, fibrous; typically             white to light brown in color, actual color of the roots is             dependent on substrate composition, water quality,             fertilizer type and formulation, substrate temperature and             physiological age of roots.         -   Rooting habit.—Moderately freely branching, medium density. -   Plant description:     -   -   Plant and growth habit.—Herbaceous perennial; relatively             compact, upright and mounded plant habit; low vigor and slow             growth rate; freely branching habit with about eleven             primary branches developing per plant.         -   Plant height.—About 12 cm.         -   Plant width.—About 15 cm.         -   Branch description.—Length: About 8 cm. Diameter: About             4 mm. Internode length: About 7 mm. Strength: Moderately             strong. Aspect: About 20 degrees from vertical. Texture and             luster: Pubescent; glossy. Color, developing: Close to 144B.             Color, developed: Close to 137B.         -   Leaf description.—Arrangement: Alternate; simple; sessile.             Length: About 5.5 cm. Width: About 1.1 cm. Shape:             Lanceolate. Apex: Acute. Base: Truncate. Margin: Serrate             with shallow and divergent indentations or occasionally,             entire. Texture and luster, upper surface: Smooth, glabrous;             slightly rough; glossy. Texture and luster, lower surface:             Pubescent; glossy. Venation pattern: Pinnate. Color:             Developing leaves, upper surface: Close to 137A. Developing             leaves, lower surface: Close to 138B. Fully developed             leaves, upper surface: Close to N137B; venation, close to             N137B. Fully developed leaves, lower surface: Close to 137B;             venation, close to 137B. -   Inflorescence description:     -   -   Appearance.—Single-type inflorescences with ligulate-shaped             ray florets and tubular disc florets; inflorescences held             upright on moderately strong peduncles, inflorescences face             mostly upright; ray and disc florets develop acropetally on             a capitulum.         -   Fragrance.—Slightly fragrant, pleasant.         -   Flowering response.—Plants begin flowering about seven weeks             after planting; plants flower naturally during June and July             in The Netherlands.         -   Postproduction longevity.—Inflorescences maintain good             substance for about six to eight weeks on the plant;             inflorescences persistent.         -   Quantity of inflorescences.—Freely flowering habit, about 18             inflorescences develop per plant during the flowering             season.         -   Inflorescence size.—Diameter: About 3.3 cm. Depth (height):             About 5 mm. Disc diameter: About 1.5 cm.         -   Receptacles.—Height: About 3 mm. Diameter: About 6 cm.             Color: Close to 144B.         -   Inflorescence buds.—Height: About 7 mm. Diameter: About             1 cm. Shape: Flattened sphere. Texture and luster: Smooth,             glabrous; glossy. Color: Close to 143A.         -   Ray florets.—Quantity per inflorescence: About 20 arranged             in a single whorl. Length: About 1.7 cm. Width: About 9 mm.             Shape: Ligulate. Apex: Emarginate. Base: Cuneate and fused             at the base. Margin: Entire; slightly undulate. Aspect:             Mostly horizontal to slightly reflexing with development.             Texture and luster, upper surface: Smooth, glabrous; matte.             Texture and luster, lower surface: Smooth, glabrous;             semi-glossy. Color: When opening and fully opened, upper             surface: Close to NN155A; color does not change with             subsequent development. When opening and fully opened, lower             surface: Close to NN155A; color does not change with             subsequent development.         -   Disc florets.—Quantity per inflorescence: About 130 massed             at the center of the receptacle arranged in about ten             whorls. Length: About 5 mm. Diameter: About 1 mm. Shape:             Fused tubular. Apex: Acute, five-pointed. Texture and             luster, inner and outer surfaces: Smooth, glabrous; matte.             Color: When opening and fully opened, inner surface: Close             to 13A; color does not change with subsequent development.             When opening and fully opened, outer surface: Close to 13A;             color does not change with subsequent development.         -   Involucral bracts.—Quantity per inflorescence: About 50             arranged in about three or four whorls. Length: About 6 mm.             Width: About 2 mm. Shape: Deltoid. Apex: Acute. Base:             Truncate. Margin: Entire. Texture and luster, upper and             lower surfaces: Smooth, glabrous; glossy. Color, upper and             lower surfaces: Close to 144A.         -   Peduncles.—Length: About 7 mm to 8 mm. Diameter: About 3 mm.             Strength: Moderately strong. Aspect: About 10 to 20 degrees             from vertical. Texture and luster: Pubescent; glossy. Color:             Close to 146A.         -   Reproductive organs.—Androecium: Present on disc florets             only. Quantity per floret: Four per disc floret. Filament             length: About 1 mm. Filament color: Close to 144B. Anther             shape: Roughly rectangular. Anther length: About 1 mm.             Anther color: Close to 144B. Pollen amount: Scarce. Pollen             color: Close to 17A. Gynoecium: Present on ray and disc             florets. Quantity per floret: One. Pistil length: About             3 mm. Stigma diameter: About 1 mm. Stigma shape: Bi-parted.             Stigma color: Close to 144B. Style length: About 1 mm. Style             color: Close to 144B. Ovary color: Close to 144D.         -   Seeds and fruits.—To date, seed and fruit development have             not been observed on plants of the new Leucanthemum. -   Pathogen & pest resistance: To date, plants of the new Leucanthemum     have not been observed to be resistant to pathogens and pests common     to Leucanthemum plants. -   Garden performance: Plants of the new Leucanthemum have exhibited     good tolerance to rain, wind and to tolerate temperatures ranging     from −30C to about 35C and to be suitable for USDA Hardiness Zones 4     through 9. 

It is claimed:
 1. A new and distinct Leucanthemum plant named ‘Doleuswedaishe’ as illustrated and described. 